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1/*2 * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.3 *4 * This software is available to you under a choice of one of two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * provided with the distribution.22 *23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * SOFTWARE.31 */32 33#ifndef RDMA_USER_IOCTL_CMDS_H34#define RDMA_USER_IOCTL_CMDS_H35 36#include <linux/types.h>37#include <linux/ioctl.h>38 39/* Documentation/userspace-api/ioctl/ioctl-number.rst */40#define RDMA_IOCTL_MAGIC 0x1b41#define RDMA_VERBS_IOCTL \42 _IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr)43 44enum {45 /* User input */46 UVERBS_ATTR_F_MANDATORY = 1U << 0,47 /*48 * Valid output bit should be ignored and considered set in49 * mandatory fields. This bit is kernel output.50 */51 UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1,52};53 54struct ib_uverbs_attr {55 __u16 attr_id; /* command specific type attribute */56 __u16 len; /* only for pointers and IDRs array */57 __u16 flags; /* combination of UVERBS_ATTR_F_XXXX */58 union {59 struct {60 __u8 elem_id;61 __u8 reserved;62 } enum_data;63 __u16 reserved;64 } attr_data;65 union {66 /*67 * ptr to command, inline data, idr/fd or68 * ptr to __u32 array of IDRs69 */70 __aligned_u64 data;71 /* Used by FD_IN and FD_OUT */72 __s64 data_s64;73 };74};75 76struct ib_uverbs_ioctl_hdr {77 __u16 length;78 __u16 object_id;79 __u16 method_id;80 __u16 num_attrs;81 __aligned_u64 reserved1;82 __u32 driver_id;83 __u32 reserved2;84 struct ib_uverbs_attr attrs[];85};86 87#endif88